时间序列TimeSeries的索引
In [48]: ts
Out[48]:
2011-01-02 0.711405
2011-01-05 -1.675175
2011-01-07 1.104304
dtype: float64
通过标签进行索引
In [50]: ts[1]
Out[50]: -1.6751745478946134
通过字符串进行索引
In [51]: ts['2011-01-07']
Out[51]: 1.1043041797936226
In [52]: ts['2011-01-05':]
Out[52]:
2011-01-05 -1.675175
2011-01-07 1.104304
dtype: float64
通过部分字符串进行索引
In [53]: ts['2011-01']
Out[53]:
2011-01-02 0.711405
2011-01-05 -1.675175
2011-01-07 1.104304
dtype: float64
通过时间戳进行索引
In [59]: ts[datetime(2011,1,7)]
Out[59]: 1.1043041797936226
TimeDataFrame的索引
方法跟TimeSeries类似,但需要加上loc()或iloc()才能访问到对应的数据,具体可参考Pandas —— loc( )和iloc( )